Maximum-capacity car



March 177, 1925. 1,529,837 D. HIN DAHL I MAXIMUM CAPACITY CAR Filed March 1, v1924, 3 Sheets-Sheet 2 March 17,- 1925.

D. HlNDAHL MAXIMUM CAPACITY CAR Filed March 1, 1924 3Sheets-Sheet 5 Patented Mar. 17, 1925.

UNITED STATES,

PATENT OFFICE.

DAVID HINDAHL, OI* CHICAGO, ILLINOIS, ASSIGNOR TO HAR-RY S. HART,'OF CHICAGO,

' ILLINOIS. v

MAXIMUM-'CAPACITY GAR.

Application led March 1, 1924. Serial No. 696,114.

To all whom t may concern:

Be it known that I, DAVID HiNDAHL, a citizen of the United States, residing at Chicago, in the, county of Cook and State of Illinois, vhave invented certain new and useful Improvements in Maximum-Capacity Cars, of which the following is a specification.

The present invention relates to maximum capacity cars.

More particularly, the present invention relates to the construction of railway dump cars. Cars of this sort are commonly designed to deposit lading selectively outside of the tracks or betweenthe tracks between the trucks, whichtrucks are located adjacent to the two ends of the cars. lading to be deposited is relatively heavy such, for example, as rock ballast, the carrying capacity for such lading is limited not by the bulk thereof, but by the weight. Ballast cars in common use limit the amount of rock ballast or other heavy ballast to that which may be carried by said carat regions from which dumping may be conveniently accomplished between the trucks.

Inasmuch as the distance between the trucks is limited by certain specifications, a problem which has presented itself to designers of cars of this sort has been to so design the parts that a maximum of ballast up to the limit of weight may be carried without sacriticing the advantages of convenient dumping and without sacriiicingV adaptability for the car for carrying lighter lading. Certain typesof ballast cars which have been designed are quite inetlicient when it is desired to carry other lading, such as coal, which is lighter in weight, inasmuch as said cars do not economically utilize the space over the trucks.

An object of the present invention is to provide a construction which will permit the carrying of a maximum of heavy lading up to the limitof weight, which ,car will also be efcient for carrying lading of lighter weight.

A further object is to provide an improved car for carrying la maximum of heavy vlad- If thel ing, such as rock ballast, which should be depositedv selectively between` the railsl or outside ofthe rails and for carrying lading such as coal, which need not be dumped be-k tweenl the rails.

A further object is to provide an improved car for efficiently carrying relatively heavy lading, which car will be economical of space for carrying lighter lading.v t

A further object is to provide an improved car providing maximum carrying capacity for both heavy .ballast andfor light ballast.

Further objects will appear as the descrip.- tion proceeds.

Referring to the drawingsl Figure l is a view in longitudinal section of one end of a railway dump car;

F igureQ is a plan view, parts being shown in section, the sectional view being taken along the plane indicated by the arrows 2 2 of Figure 3; y

Figure 3 is a transverse'l vertical sectional. view taken along the plane indicated by the arrows 3 3 of Figure l; and v Figure 4 is a sectional view taken along the plane indicated by the arrows -l-Ll of Figure 2. l

kThe numeral l indicates a dump car` having the side walls 2, 2, and end Walls, one of which is indicated by the numeral 3. Trucks, one of which is located adjacent to each .end of the car l lare illustrated dia-` grammatically by the wheels thereof-which are indicated by the reference numerals il, 4.. According lto the illustrated embodiment Iof the present invention, the car is provided` with dumping mechanism located between the trucks, said dumping mechanism comprising doors 5, 5, (one of which is` illus-A trated in Figure 1'), which doors 5, 5, are

mounted for swinging movement about axes the tracks or outside thereof. Thedetailsv of construction of the dumping mechanism between the trucks: need not` be described l herein inasmuch as such details are well known to those skilled inthe art and ini asmuch as said details do not constitute the present invention.

Each end of the car is provided with a sloping floor 8, which floors slope toward the adjacent ends of the doors 5, 5, that is to say, said floors 8, 8 are so sloped that Y 'lading located above said floors Will tend tov move toward the doors 5, '5 when said doors are opened. disposed at "such an angle relative to a horizontal plane thatsuch lading as 'rock Aballast Will flow therefrom, that is `to say, the angle should be* suchfthat the force of gravity actingupon rock ballast located above said floors ivill'be s ufhcient to overcome the resistance to flow due to contact between. said floors,k 8, 8, and the ballast restingthereon. For this purpose it has lbeen, found by experiment that the angularity of the 'lioors 8, 8, relative to a horizontal plane may be approximately l5 degrees with thc car standing 'upon avhorizontal traclr when. said car is designed for the carrying of rock ballast.

At each end of the car above the trucks is a floor indicated by the numeral 9. The details ofthe construction of the floor 9 do not form a. part of the present invention, but said floors should be so designed as to permit the discharge of lading therefrom to the sides of the car outside the rails. Any preferred design of floor may beuse'd, many of such designs being known tothose skilled in the art. According to the illustrated embodiment of the p-resent invention, the floors '9 may comprise yslopii'igportions for direct- .ing lading laterally `of the car, said sloping portions having ltheir 'apex along the line marked by the angle 10. Swinging side doors 11. 11 may be pro-vided, controlled in any preferred Way, for permitting lading to flow from said floors 9 to the sides of the l tical plane located substantially midvvay between vthe Wheels 4E. l, of its adjacent truck. Each of v'said floors 8 is supported by a transversely extending bar 13. vvhichbar may be supported vangles .14, one of whichy is illustrated i'nFigure '1. Angles 15 may'palso be provided for Iioiningzeach of the floors 8 .toh 'the' sides of `the ear.

It 'will be noted fromv the [drawings that Said oors should beA the present invention has been illustrated in a car having Wood as a considerable part Y of its construction. It will be understood`l of course, that the invention is not limited to Wooden cars or cars of any particular kmateriahbut in theeventthat it is preferred to use Wood in the construction ofthe car, the present inventioncontemplates certain novelfeatures for securing and supporting the Wooden structure;` I

Referring to Figures 3 and 4c, it Will be noted that the center sill 16 has mounted on the two sides thereof theL bolsters 17, 17. The cross-sectional configuration of keach bolster 17 is illustrated in Figure 1. It will be noted that `each bolster17 comprises a sheetl steel lmember 18 `which has secured thereto at its lower extremities the angles 19, 19, and at its upper extremity the vangle 20. Located adjacent to the angle 20, but disposed upon the opposite side ofthe mem. ber 17 is the Z-bar 21 which provides an abutment for receiving thel lower portion of the floor 12. An angle22issecured onthe upper side of the center sill 16, which angle provides an abutment aligned With the abutinents provided by the Z-bars 21.21, so that a continuous 'abutment is provided transversely of the car for the corresponding floor 12. f f- Inoperation, when it is 'desired to use the car for carrying rock ballast or other heavy lading, said heavy lading'willbe deposited in the car centrally thereof, beinszjcarriedL by the bottom portion vbett/veen k'the trucks and by the sloping Hoors 8,` 8, said heavy lading assuming an angle of repose ,which` may be indicated by the line 23. When, the car is to be used for the purposek of carryin@ lading which need not be dumped between. the trackathe entire car between the end Walls thereof may be filled with such lading, only .a small portion of the car `between the sloping floors 8 and atl each end of the car being unused at this time'l That portion of the lading ab'oveireferred to which is located on 'and between the sloping floors 8, 8. will be directed through'the n doors 5, 5; That part of's'uch lading which is located between the' floors 8, 8, and the ends of the car Will be directedthrousgh the swinging doors 11. 11. The car illustrated and described will shed Aall of the ,lading whereby a maximum of convenience in handlingv is obtained. v y

Though a preferred embodiment of the present invention has been describedvin detail, it will b'eclearg-that many modifications may be made Without departing from the spirit of the invention.' rIt is intended to cover all such vmodifieations that fall Within the scope of the invention asdeined bvthegappended claims. I claim;

Vl. A dump car vfor eiiiciently l carrying either relatively heavy 'or relatively light lading comprising a car body having trucks adjacent to the ends thereof, dumpvmeans between said trucks, a sloping fio'or at each end of said car for directing lading to said dump means, a floor at each end of said car over the corresponding truck, sloping walls for directing lading to said last mentioned fioors, each of said walls being disposed at an angle to .its corresponding first mentioned floor and abutting against said first mentioned fioor at a line intermediate of the height thereof.

2. A dump car for efiiiently carrying either relatively heavy or relatively light lading comprising a car body having trucks adjacent to the ends thereof, dump means between said trucks, a sloping floor at each end of said car for directing lading to said dump means, afloor located between each of said first mentioned sloping iioors and the adjacent end of said car, walls for directing lading to said last mentioned floors, said walls being angularly disposed to have abutting relation with said first mentioned floors, said first mentioned floors being extended to a region materially beyond said walls.

3. A dump car for efiiciently carrying either relatively heavy or relatively light lading, comprising a car body having trucks adjacent to the ends thereof, dump means between said trucks, a sloping floor at each end of said car for directing lading to said dump means, means providing a receptacle at each end of said car beyond said sloping Floors, said floors extending to lines disposed transversely of said car at regions near the top thereof. each of said receptacles provid.- ing means including a wall abutting against the underside of its corresponding floor along a line extending transversely of the car at a materially lower level than the top of said floor.

4.. A dump car for eiciently carrying and dumping relatively heavy lading and lighter lading, comprising a body portion. trucks at the ends of said body portion for supporting same. dumping mechanism between said trucks. dumping mechanism over said trucks. and sloping floors and Walls, arranged in pairs. extending transversely of the car body, walls and iioors of each pair being adjacent to each other and reversely sloped to form an apex.l said fioors being disposed to direct lading` to a regionl between said trucks` said floors extending to' a region adiacent to the top of said car, said walls being disposed to direct lading to regions adjacent to said trucks and having abutting relation with said floors at regions materially lower than thenpper extremities of said other floors.

5. A dump car comprising in combination, a car body, trucks for supporting same, sloping floors for directing lading to a region between said trucks, each of said sloping floors lying above an adjacent truck between said trucks,'and sloping vwalls for directing lading to regions adjacent to said trucks,

said sloping Walls having abutting relation l `with the under-sides of said first'floors at regions intermediate of the height of said floors. l

6. In a dump car, in combination, a sloping floor for directinglading centrally of said car, a sloping wall having abutting relation with said sloping floor, a center-sill,

holsters abutting said center sill, and angu lar means supported by said center sill and said holsters for forming abutments for said second mentioned sloping wall.

7. In a dump car, in combination, asloping floor for directing lading centrally of said car and a sloping wall having abutting relation with the under-side of said floor for directing lading towardan end of said car, said sloping floor being extended to a region materially above said sloping wall.

8. A dump `car for efficiently carrying either relatively heavy or relatively light lading, comprising a car body having a truck adjacent to an end thereof, l dump means centrally of said car, a sloping iioor located over said truck for directing lading to said dump means, a sloping wall for di:- rectinglading to a region adjacent to said truck, said wall being disposed at an angle to said floor and abutting against said floor on the under-side lof said floor at a lineintermediate of the height thereof. y

9. A dump car for efficiently carrying either relatively yheavy or relatively light lading, comprising a car body having a truck adjacent to the 1 end thereof, dump means located centrally of'said car, a sloping floor over said truck for directing lading to said dump means. a sloping wall for directing lading to a region adjacent to said truck, said wall being angularly disposed relative to and having abutting relation y with said floor, said Hoor being extended to a region materially above said wall.

10. A dump car for efficiently carrying either relatively heavy or relatively light lading, comprising a car body having a truck adjacent to an end thereof, dump means disposed centrally of said car, a sloping floor above said truck for directing lading to said dump means, means providing a receptacle at said end of said car beyond said sloping door, said receptacle providing means including a wall abutting against the underside of said fioor at a line extending transversely of said car at a materially lower level than the top of said floor.

11. A dump car for efficiently carrying and dumping relatively heavy lading and lighter lading comprising a body portion, a truck at an end of said body portion for supporting sama-dumping mechanism disi said ear, ysaid Wall having abuttingelation posed centrally of said car, a sloping floor with saidfloor at a region materially lower and a sloping wall reversely disposed relathan the upper extremity of said'ioox'. 10 y tively yto one another" to form an apex, saidv Signed at Chicago, Illinois, this 26th day floor being` disposed to direct ladingto a of February, 1924. region centrally of said'ear, said floor eX- v tending to a region adjacent to the top ofy DAVID IIINDAILIL.A 

